Today I gave my car the full P21S treatment. I cleaned the wheels with P21S Gel Wheel cleaner, washed it, used P21S Paintwork Cleanser and followed that up with their 100% pure carnauba wax. You can feel the paint is now free of contaminants when you slide your hand across it, and the wheels look truly stunning. I am extremely satisfied with the P21S kit. Wish I had some photos but it's dark.
Past: 1999 Techno Violet Metallic M3
Present: 2011 135i 6MT